Description
Specifically designed to attach wood to heavy section steel (Max. 12mm). Metric thread with wings designed to ream out the timber, so the screw can achieve Max. R.P.M. without burning out. When the wings hit the metal they will break off to permit the thread to self-tap into the metal. NOTE: Partially threaded.
Thread Dia. mm=5.5
Length mm=120
Head Type=Countersunk with Ribs
Recess Type=Phillips
Point Type=Self-Drilling No.5
Finish=Zinc
Material=Case & Core Hardened Carbon Steel
Effective Thread Length mm=51 *P/T
Max Drilling Thickness mm=12
